Rotary endoscope injection needle

Abstract

The utility model discloses a rotary type endoscope injection needle which comprises an outer tube, and an annular sliding groove is formed in the outer tube. An inner pipe is embedded in the outer pipe in a sliding manner; a pointer sliding block is fixedly arranged on the outer wall of the inner tube; a shell is arranged at one end of the outer pipe; a middle pipe is embedded in the shell, and the middle pipe and the inner pipe are communicated and integrally formed; a plurality of positioning stop blocks are arranged in the shell at equal intervals; a through groove is formed in one side of the positioning stop block; a plurality of marks are arranged on the outer wall of the outer pipe at equal intervals; the marks are arranged on the outer tube, so that a doctor can visually read the marks on the outer tube during injection, the depth of the outer tube penetrating into an endoscope is predicted according to the length of the marks, the doctor can be prevented from inserting a needle blindly, the injection efficiency of the doctor is improved, reading is convenient and fast, and the injection accuracy is improved; the device is simple in structure, convenient to operate and worthy of popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, and in particular to a rotary endoscope injection needle. Background Art

[0002] Endoscopes are currently a commonly used medical device in clinical diagnosis and treatment. Medical staff insert the head and catheter of the device into the patient's body and observe it through the eyepiece. At the same time, the endoscope is also equipped with auxiliary equipment to perform sampling, treatment or surgery in real time while observing. The injection needle is one of the most important components of endoscopic treatment. It is used to inject liquid medicine into the cavity tissue during the clinical process.

[0003] The existing endoscopic injection needle cannot predict the depth of the injection needle into the endoscope during injection, so accurate injection cannot be performed. During injection, the needle is easy to move and cause retreat, and the needle stability is poor. Therefore, we propose a rotating endoscopic injection needle. Summary of the invention

[0004] The purpose of the utility model is to provide a rotary endoscopic injection needle to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary endoscopic injection needle, which includes an outer tube, the interior of which is provided with a circular groove; the interior of the outer tube is slidably embedded with an inner tube; the outer wall of the inner tube is fixedly provided with a pointer slider; an outer shell is provided at one end of the outer tube; an intermediate tube is embedded in the interior of the outer shell, and the intermediate tube is connected with the inner tube and formed as one piece; a plurality of positioning blocks are equidistantly arranged inside the outer shell; a through groove is provided on one side of the positioning block; a plurality of marks are equidistantly arranged on the outer wall of the outer tube; a needle is provided at one end of the inner tube away from the intermediate tube; and a connector is provided at one end of the intermediate tube away from the inner tube.

[0006] Preferably, a limiting ring is provided at one end of the intermediate tube away from the connecting head; an inner tube guide ring is provided on the inner wall of the outer shell; a guide groove is provided in the middle of the inner tube guide ring, and the guide groove is adapted to the diameter of the inner tube; a spring is provided on the outer wall of the inner tube between the inner tube guide ring and the limiting ring.

[0007] Preferably, an intermediate tube guide ring is fixedly arranged inside the tail end of the shell; a guide groove is opened in the middle of the intermediate tube guide ring, and the intermediate tube moves horizontally in the guide groove.

[0008] Preferably, the pointer slider slides horizontally inside the slide groove.

[0009] Preferably, the through slot is matched with the stopper; the shape of the through slot is the same as that of the stopper; and a gap for the movement of the stopper is provided between two adjacent positioning stoppers.

[0010] Preferably, the interval between two adjacent marks is 10 mm.

[0011] Preferably, the outer tube is a transparent flexible tube.

[0012] Beneficial effect: Compared with the prior art, the beneficial effect of the utility model is as follows: by setting marks on the outer tube, the doctor can intuitively read the marks on the outer tube during injection, and then predict the depth of the outer tube into the endoscope according to the length of the marks, which can avoid the doctor's blind insertion of the needle, thereby improving the doctor's injection efficiency, facilitating and quickly reading, and thus improving the accuracy of the injection; by setting the block, the positioning block, and the through groove, the middle tube is rotated, and the block is located at a position where the two positioning blocks are away from the through groove. The positioning block limits the middle tube to prevent the middle tube from driving the needle to move and causing the needle to return, so that the position of the needle remains stable, thereby improving the applicability of the injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of a rotary endoscope injection needle. Figure 2 The utility model is a schematic diagram of the overall structure of a rotary endoscope injection needle. Figure 3 The utility model is a schematic diagram of the overall structure of a rotary endoscope injection needle. Figure 4 This is a schematic diagram of the overall structure of a rotary endoscope injection needle proposed by the utility model. In the attached figure: 1-inner tube, 2-outer tube, 3-sliding groove, 4-pointer slider, 5-housing, 6-middle tube, 7-limiting ring, 8-spring, 9-inner tube guide ring, 10-block, 11 positioning block, 12-through groove, 13-connector, 14-middle tube guide ring, 15-needle head, 16-marker. DETAILED DESCRIPTION

[0014] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention,

[0015] The present invention is further described with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0016] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0017] Example

[0018] Please refer to the drawings of the specification. In the embodiment of the utility model, a rotary endoscopic injection needle comprises an outer tube 2, wherein a circular groove 3 is provided inside the outer tube 2; an inner tube 1 is slidably embedded inside the outer tube 2; a pointer slider 4 is fixedly provided on the outer wall of the inner tube 1; an outer shell 5 is provided at one end of the outer tube 2; an intermediate tube 6 is embedded inside the outer shell 5, and the intermediate tube is connected with the inner tube 1 and formed as a whole; a plurality of positioning blocks 11 are equidistantly provided inside the outer shell 5; a through groove 12 is provided on one side of the positioning block; a plurality of marks 16 are equidistantly provided on the outer wall of the outer tube 2; a needle 15 is provided at one end of the inner tube 1 away from the intermediate tube 6; a connector 13 is provided at one end of the intermediate tube 6 away from the inner tube 1, and the intermediate tube 6 A limiting ring 7 is provided at one end away from the connector 13; an inner tube guide ring 9 is provided on the inner wall of the outer shell 5; a guide groove is provided in the middle of the inner tube guide ring 9, and the guide groove is adapted to the diameter of the inner tube 1; a spring 8 is provided on the outer wall of the inner tube 1 between the inner tube guide ring 13 and the limiting ring 7, and an intermediate tube guide ring 14 is fixedly provided inside the tail end of the outer shell 5; a guide groove is provided in the middle of the inner tube guide ring 14, and the intermediate tube 6 moves horizontally in the guide groove, the pointer slider 4 slides horizontally inside the slide groove 3, the through groove 12 is adapted to the block 10; the shape of the through groove 12 is the same as that of the block 10; a gap for the movement of the block 10 is provided between two adjacent positioning blocks 11, the interval between two adjacent marks 16 is 10 mm, and the outer tube 2 is a transparent flexible tube.

[0019] Usage process:

[0020] When in use, at the beginning of the operation, the outer tube 2 is in a natural vertical state, and the needle 15 at one end of the inner tube 1 is retracted into the outer tube 2. Then the outer tube 2 is inserted into the position where infusion is required, and the depth reached is checked according to the mark. Through the mark, the doctor can read the reading more conveniently and quickly, thereby improving the accuracy of the injection. After reaching the specified position, the middle tube 6 is rotated, and the block 10 on the middle tube 6 is rotated to the through groove 12. After moving to the specified position, the middle tube 6 is rotated, and the block 10 is located at the two positioning blocks 11 away from the through groove 12. The positioning block 11 limits the middle tube to prevent the middle tube 6 from driving the needle 15 to move, causing the needle 15 to return to the needle, so that the position of the needle 15 remains stable, thereby improving the applicability of the injection. When the inner tube 1 rotates, the outer pointer slider 4 slides and guides in the circular groove 3. The needle extension length can be quickly read through the stop position of the pointer slider 4 and the mark 16. At the same time, the inner tube has a stable rotation effect, which satisfies the user experience.

[0021] In the above process, by setting a mark on the outer tube, the doctor can intuitively read the mark on the outer tube during injection, and then predict the depth of the outer tube into the endoscope according to the length of the mark, which can avoid the doctor's blind insertion of the needle, thereby improving the doctor's injection efficiency and facilitating quick reading, thereby improving the accuracy of the injection; by setting the block, the positioning block, and the through groove, the middle tube is rotated, and the block is located at a position where the two positioning blocks are away from the through groove. The positioning block limits the middle tube to prevent the middle tube from driving the needle to move and causing the needle to return, so that the position of the needle remains stable, thereby improving the applicability of the injection; the present application has a simple structure, strong practicality, and simple operation, which is worthy of promotion.

[0022] The above are only preferred implementations of the utility model. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model. These should also be regarded as the protection scope of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A rotary endoscopic injection needle, characterized in that: It comprises an outer tube, the interior of which is provided with a circular groove; the interior of which is slidably embedded with an inner tube; the outer wall of which is fixedly provided with a pointer slider; an outer shell is provided at one end of the outer tube; an intermediate tube is embedded in the interior of the outer shell, and the intermediate tube is connected with the inner tube and formed as one piece; a plurality of positioning blocks are equidistantly arranged inside the outer shell; a through groove is provided on one side of the positioning block; a plurality of marks are equidistantly arranged on the outer wall of the outer tube; a needle is provided at the end of the inner tube away from the intermediate tube; a connector is provided at the end of the intermediate tube away from the inner tube.

2. The rotary endoscopic injection needle according to claim 1, characterized in that: A limiting ring is arranged at one end of the intermediate tube away from the connector; an inner tube guide ring is arranged on the inner wall of the outer shell; a guide groove is arranged in the middle of the inner tube guide ring, and the guide groove is adapted to the diameter of the inner tube; a spring is arranged on the outer wall of the inner tube between the inner tube guide ring and the limiting ring.

3. The rotary endoscopic injection needle according to claim 1, characterized in that: An intermediate tube guide ring is fixedly arranged inside the tail end of the shell; a guide groove is opened in the middle of the intermediate tube guide ring, and the intermediate tube moves horizontally in the guide groove.

4. The rotary endoscopic injection needle according to claim 1, characterized in that: The pointer slider slides horizontally inside the slide groove.

5. The rotary endoscopic injection needle according to claim 1, characterized in that: The through slot is matched with the stopper; the shape of the through slot is the same as that of the stopper; and a gap for the movement of the stopper is arranged between two adjacent positioning stoppers.

6. The rotary endoscopic injection needle according to claim 1, characterized in that: The interval between two adjacent marks is 10 mm.

7. The rotary endoscopic injection needle according to claim 1, characterized in that: The outer tube is a transparent flexible tube.

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